Tool library
Free Online Tools
Search fast utilities for writing, documents, images, calculations, and daily productivity.
Word Counter
Count words, characters, sentences, paragraphs, and estimated reading time.
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Character Counter
Count total characters, characters without spaces, words, and lines.
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Case Converter
Convert text to uppercase, lowercase, title case, or sentence case.
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Text Cleaner
Clean messy text by trimming spaces, removing extra lines, and normalizing whitespace.
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Slug Generator
Generate clean URL slugs from titles, headings, and page names.
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Remove Duplicate Lines
Remove repeated lines from lists, notes, keywords, or pasted text.
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Percentage Calculator
Calculate percentages, percentage of a number, and percentage change.
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Age Calculator
Calculate age in years, months, and days from a date of birth.
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Loan Calculator
Estimate monthly loan payments from amount, interest rate, and term.
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Mortgage Calculator
Estimate monthly mortgage payments including principal, interest, taxes, insurance, and HOA fees.
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Business Loan Calculator
Calculate business loan payments, total interest, repayment amount, and estimated loan cost.
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Credit Card Payoff Calculator
Estimate how long it may take to pay off a credit card balance and total interest paid.
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Image Compressor
A polished image compression workspace prepared for an upcoming release.
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PDF Compressor
A document compression page with upload UI and coming soon state.
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PDF to Word
A conversion workspace prepared for PDF to Word document exports.
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AI Text Summarizer
A summarization input page prepared for future AI-powered summaries.
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Meta Title Checker
Check meta title length, pixel-style guidance, and search snippet readiness.
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Meta Description Checker
Review meta description length and preview whether your snippet is concise.
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Keyword Density Checker
Analyze repeated words and keyword density in your content.
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Explore Toolvio categories
Toolvio organizes everyday utilities into text tools, calculators, PDF tools, image tools, and AI tools so you can find the right page quickly. Each tool page includes a focused interface, helpful FAQs, and links to related utilities.